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Nikolay [14]
3 years ago
5

An element that can have different physical properties or chemical arrangement is called a (n)

Chemistry
1 answer:
shusha [124]3 years ago
3 0
<h3>Answer:</h3>

D. Allotrope

<h3>Explanation:</h3>

What is allotropy?

  • Allotropy refers to the existence of an element in more than one physical forms.
  • Allotropes are therefore different forms of an element with different physical properties or chemical arrangements.

What are some examples of allotropes?

  • Examples of elements that exhibit allotropy include, sulfur and carbon.
  • Allotropes of carbon are diamond and graphite.
  • Allotropes of sulfur are monoclinic sulfur and rhombic sulfur.
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Oxygen, o, (number 8), sulfur, s, (number 16), and selenium, se, (number 34) have such similar chemical properties because?
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5 0
2 years ago
What is the number of protons plus the number of neutrons equal to?
Sedaia [141]

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atomic number

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3 0
3 years ago
Considering that both sodium (Na) and cesium (Cs) are both alkali metals, which of the following is a correct description of the
IceJOKER [234]

Answer:- C) sodium has a higher ionization energy because it is smaller.

Explanations:- Ionization energy is the energy required to remove electron from valence shell of an atom in it's gaseous form.

More energy is required to remove the electron if the size of the atom is smaller as it's electrons are more strongly attracted by it's nucleus.

In periodic table, atomic size decreases on moving left to right in a period and increases on going top to bottom in a group.

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Hence, the right choice is C) sodium has a higher ionization energy because it is smaller.



5 0
4 years ago
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